What should I do, if my baggage exceeds the allowed amount, when I travel by train to Chengdu?

Hi
I will fly from Budapest to Chengdu, and from Chengdu I would like to travel to Chongqing by train. I read that, there is a baggage pounds limit (20 kg - 44 pounds) on the trains, and if I exceeds the allowed amount I have to use the baggage transportation service. Do they speak English at the railway station? (because I don't speak Chinese) Where could I found this service at the railway station? Because my luggage will be about 35 kgs. (I will study Chinese language in Chongqing for a year, so I will have such a large baggage)